import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import router from '@/router'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      //config.headers['X-Token'] = getToken()
       config.headers['Authorization'] = getToken()
       config.headers['X-Requested-With'] = "XMLHttpRequest"
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data
     // wu:我修改过
     if(response.headers.authorization){
       store.dispatch('user/setToken',response.headers.authorization)
     }
    // if the custom code is not 20000, it is judged as an error.
    // wu：这里我修改过 200
    if (res.code !== 200) {
      Message({
        message: res.message,
        type: 'error',
        duration: 5 * 1000
      })
      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      // wu：这里我修改过401
      // if (res.code === 401) {
      //   // to re-login
      //   // MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
      //   //   confirmButtonText: 'Re-Login',
      //   //   cancelButtonText: 'Cancel',
      //   //   type: 'warning'
      //   // }).then(() => {
      //     store.dispatch('user/resetToken').then(() => {
      //       //location.reload()
      //         next(`/login?redirect=${to.path}`)
      //     })
      //   // })
      // }
      return Promise.reject(new Error(res.message))
    } else {
      return Promise.resolve(res)
    }
  },
  error => {
   // console.log('err' + error) // for debug
   var response = error.response.data
   var status = error.response.status
    Message({
      message: response.message,
      type: 'error',
      duration: 5 * 1000
    })
    if(status==401){
        store.dispatch('user/resetToken')
        router.replace({ path: '/login' })
    }
    return Promise.reject(response.message)
  }
)

export default service
